Question about Goodman GMS90703BXA Heater

2 Answers

Furnace won't stay running

Just had goodman furnace installed. its 95%effiecient . i set the thermostat at a certain temprature when it reaches it the furnace shuts off like it suppose to . the temp drops furnaces won't kick back . the board is flashing 1 single flash. reset the furnace then does it again

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  • Anonymous Nov 24, 2008

    one flash furnace has to shut off to restart

  • Anonymous Feb 01, 2009

    I have same problem with a carrier furnace.

  • Anonymous Mar 17, 2014

    when the thermostat send a signal to the furnace. it start running and then i see the green light flashing the red light stay on. that indicate a pressure open fault.

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2 Answers

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  • Master
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1
1 FLASH
Furnace fails to operate.
• Integrated control module
diagnostic LED is
flashing ONE (1) flash.
• Furnace lockout due
to an excessive
number of ignition
“retries” (3 total)1.
• Failure to establish flame.
Cause may be no gas to
burners, front cover
pressure switch stuck open,
bad igniter or igniter
alignment, improper orifices,
or coated/oxidized or
improperly connected flame
sensor.
• Loss of flame after establishment.
Cause may be
interrupted gas supply, lazy
burner flames (improper gas
pressure or restriction in flue
and/or combustion air
piping), front cover pressure
switch opening, or improper
induced draft blower
performance.
• Locate and correct gas
interruption.
• Check front cover
pressure switch
operation (hose, wiring,
contact operation).
Correct if necessary.
• Replace or realign
igniter.
• Check flame sense
signal. Sand sensor if
coated and/or oxidized.
• Check flue piping for
blockage, proper
length, elbows, and
termination.
• Verify proper induced
draft blower performance.

Posted on Nov 25, 2008

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  • Contributor
  • 23 Answers

Check to make sure that it is draining right sounds like a draining problem if water gets in the inducer motor it will not vent the air right and the pressure switch won't close

Posted on Sep 18, 2013

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